Rotary roasting range



A. E. TROIEL ROTARY ROASTING RANGE Filed oct. 50, 192s sheets-sneer.;

llll llllllll '.oeooo'boo@ m11 /NVENTo/.' 2 ARTHUR E. TRO/EL.

A 7' TRNEYeS.

. May 31,1927. 1,630,644

A. E. TROlEL ROTARY ROASTING RANGE Filed Oct. 30, 1923 3 Sheets-Sheetl 2 Illu-mw mllllllll" lll 4** INVENTOR. ARTHUR E TRO/EL BY Myth l A T TO RNE Y6.

192 May 31 7 A. E. TROIEL ROTARY ROSTING RANGE 3 Sheets-Shen#l 3 Filed Oct. 30,1925

/NVENTOR ARTHUR E. TRO/EL. BY M A T Tom/EVS.

Patented Mey 3l, 19217,

lJhll'fEl) SJliTlS PATENT QFFICE.

,ARTHUR E. TROEEL, GF BERKELEY, CALXFORYA, ASSGNOR TO MGNTAGUE RANGE AND FUE/NACE C0., OF SAN FRANCSCO, CALXFGRNIA, A CORPORATION OF CALI- FRNIA.

ROTARY ROASTING v Application tiled Getober 30, 1923. Serial No. 671,723.

This invention relatos to a roasting range, und especially to a rotary type of range for roasting birds, fowl, etc.

rEhe object of the present invention is to generally improve and simplify the construction and operation of ranges of the character described; to provide a range in which the article to be roasted will be continuously and slowly rotated on a spit while being roasted; to provide means whereby the article to be roasted will be exposed to radiant heat only, thereby eliminating the danger of imparting unsavory flavors, etc.; to provide a concave or semi-circular shaped heat radiating plate, one side of which is heated by a gas flame or other suitable means, while the other side serves the function `of projecting the heat in the form of radiating rays; to provide a range structure which permits a number of heat radiating plates to be disposed one above the other and each to be individually heated and operated; and further, to provide means for adjusting the rotating spit to vand away from the heat radiating plates.

One form which my invention may assume is exemplified in the following description and illustrated in the accompanying drawings, in which- Fig. l is a front view range.

Fig. 2 is an end view.

Fig. 3 is a central vertical longitudinal section.

Fig. 4: is a horizontal section taken on line 4 4, Fig. 3.

Fig. 5 is an enlarged detail view of `one of the adjustable bearings whereby'the spits are supported.

Fig. 6 is a perspective view of one of the roasting spits.

Referring to the drawings iu detail, and particularly to Jigs. l, 2 and 3, A indicates in general a range, 2 the base thereof, 3 the upper plate of the range, and 4l the hood. 'lhe range is provided with an interior frame of suitable construction such as indicated at 5, and this is covered with sheet iron or a like material such as shown at 6, which is covered with an insulating material such as shown at 7 Wherever required. Formed in the front face of the range is an offset 3o of the roasting generally indicated at B, and disposed in the forward face ofthe offset are a. series of heating plates generally indicated at C, D and E. These plates are semi-circular in cross-section as shown, and they extend from end to end of the range as illustrated in Fig. l.

The heating plates may be constructed of cast-iron, steel or like material, and they are so arranged that they will be heated from the rear side when in operation; the heat absorbed being projected in the form of radiating rays so as to prevent smoking, smudging, or burning' of the articles to be roasted. Each heating plate is in this instance heated by agas burner such as shown at 8; a perforated elongated tube being disposed below each heating plate'to which gas is supplied by an ordinary gascock suoli as shown at 9. The tubes or burners S are disposed below the heating plates and the flame of each burner will thus strike the lower side of each plate and will then be dee, iiected and directed upwardly, and around" each plate, thus applying the heat in a most efficient manner, and furthermore, permitting each plate to absorb the greatest amount of heat.

To maintain the llame of each burner in close contact with the heating plate, a rear shield is provided as shown at 10. This shield is curved to conform with the curve of the heating plate, and the lower end is vertically disposed as at 11 and then in turned at the bottom as at 12 to form a closed furnace chamber. The upper curved end of each shield or plate 1Q is provided with two or more elongated openings 13,

as shown in Figs. 3 and 4:, and these open- ,ings are provided to permit a free escape of the products of combustion; the openings 13 being` iu communication with a vertically disposed flue 'lei formed rearwardly of the plates 10, the -flue having ample capacity to take `zare of the discharging gases or products of combustion.

The upper end of the flue terminates in a pipe l5, which in turn enters a final discharge stack 16. This stack is of larger diameter than the pipe l5 and as such forms an annular exit 17 for steam and vapors collected in the hood 4. The flue 14 is -lll formed by an intermediate partition plate 18 and `this is insulated by the formation ol a4 dead air space such as shown at 19, this .space'being lormed between the partition plate 18 and an intermediate partition plate Further insulation is obtained by coverinf., the rear rplate 2l of the range with asbestos or like material.

A second tlue is ilorined between the plate 20` and the insulated rear plate 2l as indicated at Q2. The lower end of this Hue communicates with the lower chamber ol the range indicated at 23 and the upper end comunicates with the hood and the stack 1G by means of a series of pertorations suoli as shown at 24.

A gas burner Q5 disposed in the lower chamber of the range and it is placed Ydirectly below a drip pan such as shown at 26; this pan beingsupported by the upper plate 3 of the range. and it is so positioned as to collect the drippinps :troni the articles being roasted. These articles are carried by ordinary roasting spits such as indicated at 2T there being three employed in the `present instance as three .heating plates are provided. ln other words, there is one roasting spit for each heating plate. y,

`The roasting spits are continuously rotated while an article is being roasted, and it mayfurthermore be stated that "the roasting spits maybe adjusted to and away from the heating plates so as to obtain the best results possible. The manner of rotating the spits and ot' adjusting them with relation to the heating plates will now be described.

Secured on each side ot the range are bearing brackets such as indicated atY 30. A They are arranged in pairs and their upper faces are provided with tracks such as shown at 31.; Slidahly mounted on each track is a bearingmember 32, and supported by the hearing members are the roasting spits proper. The spits are identical in construction and they are perhaps best illustrated in Figs.` l and G. Each spit consist-s et a central rod 33, on one end of which is Vsecured a spiral `gear pinion 34;. `Also se* cured on the rod is astationary, permanent head member 35, and secured thereto is a pair oi. rods 36. Shdably mounted lon the koriosite end of the rod is a head 37 and adapted to secureythe same is a setscrew 38. Thehead 3'?` is perforated to receive the ends of the rods $36 and the head may thus be moved into or out ofengagement with the rods to permit the insertion of articles to be roasted. The rods are all pointed as shown at 39 and "it is thus a simple matter to secure the roasts as it will only be necessary to pass the rods through the same. The central rod 33 terms the main `support-andit is this rod that is supported by the bearings 32. The rod is, however, tree to be lifted with relation to these bean nient will be transmitted.

`the purpose ot roasting` chickens.

ings and the bearings are therefore` :forkshaped or slotted at their upper ends lo permit the rods 33 to he readily liilftrd out or replaced; the 'l'orkod or open ends ol. tho bearings 32 being;- shown at ell).

Journaled in each ot the bearings i355, disposed on one side ot the range. is a shalt ell` and secured on each ot saidshalls is a spiral driving gear ft2. Journaled on the same sideof the range in hearings such as shown at fll and. lll are tubular shal'ts fifi. The shafts 4l are adapted to telescope with relation to the shal'ts d5, and a splined connection formed between the saint-i, thus permitting; the bearings 32 and the shalts `ll to be moved to and away troni the heatingr plates without breaking; the driving` connection between the tubular shafts il?) and` the shal'tsll. The shafts are all driven in unison by an endless sjiiroeket chain 46, this chain being in turn driven by an `electric motor 47' and a reduction worm driveF such as shown at Lltl. The sha' Aare each provided with sprocket gears, over which the chain 46 passes, and idlers are dispiiised intermediate the sprocket wheels so as tonniiny tain the chain in engagementtherewith. tht` idlers being illustrated at 49. lt can thus be seen that all of the spits will he rotated in unison and that a fairly slow rotary move- This is of con siderable importance as each roast will in this manner be uniformly heated and roasted as all parts thereof will beequally eirposed tothe heating plates7 in front ot `which they are disposed.

n actual operation it might be stated that the range has been particularly designed lor `'llhereu tore.` it it is desired to roast "one or more chickens, it will only be necessary to remore one ol. the spits, this being accomplished by merely lifting it out ort its supportingr bearings 32. The chickeils are passed over the 1ration, the other two burners `will not he lighted,the only burner in opcratnlin heine` the one disposed below the heating plate which is in use and thehnrner indicated at 25 which will maintain fthe .drip or busting: pan in a het condition. The spits will continue to rotate untilthe chickens are roasted and the spit which is in operation maybe moved to and away from the plate as the lll() lill lill) 4nastreeft roasting operation proceeds. For"iustalui'e,

if it is desired to brown the chickens quickly and form an exterior coat which will retain the juices, it is best to adjust the bearings so that the spits will be placed fairly close to the heating plato. A quier and intense heat is in this manner applied at the begrinning of the roasting operation, and if it vheating plates to assume any position de# sired; this li eing accomplished without interrupting the rotating movement of the spits as the telescoping and splined connection between the shafts 4l and 4L-5 will permit continuous rotation without interruption.

By applying the heat in the manner here shown, it is obvious that a palatable and savory roast will be obtained as the roast will not be tainted by odors of the gas, nor will it become smoked or smudged as the gas merely heats one side of the plate, while the heat employed for roasting is radiated from the opposite side thereof. By bending the heating plates so as to form a semi-circle, a large area is provided and a high concentration of heat can be obtained.

By forming a separate furnace chamber below each heating plate, it is possible to dispose one heating plate above the other as shown, and while three are here illustrated it is obvious that the number may be increased or decreased as desired.

The air to support combustion is admitted partially through the valves 9 and partially through. perforations or openings 50 formed in the forward face of the range; these openings being best illustrated in Figs. l and 3, and being in communication with each burner 8 or, in other words, with the furnace chamber in which the burners are mounted. Ample air is in this manner admitted to support combustion and as large discharge openings are formed at the upper ends of the shields or plates 10,' it can be seen that a free discharge of the products of combustion is permitted. All. the discharge openings communicate with the common llue 14 and a free escape of the products of combustion is thus permitted.

I'Vhile certain features of the present invention are more or less specifically illustrated, I wish it undersood that various changes in form and proportion may be resorted to within the scope of the appended claims. I similarly wish it understood that the materials and finish of the several parts employed may tbe such as the experience and udgment of the manufacturer may dictate or various uses may demand.

I-laving thus described my invention, what I claim and desire to secure by Letters Patent Aisi l. In4 a range of the character described, an elongated horizontally disposed plate, said .plate ,being substantially semi-circular in cross-section and having its concave sido open,` unobstructed and exposed to Vthe atmosphere, and means for applying'y a gas flame tothe convoiv side of the plate so that heat. may be conducted and radiated to an article to be roasted which is placed in front ill of the convex` side of the plate. 4

2. Ina range of the'character described, an elongated horizontally disposed heating plate, said plate being substantially semi` circular in cross-section and placed on edge to assume a vertical position with its concave side exposed to the atmosphere, a gas burner disposed below the convex side of the plate and adapted to direct its flame against the plate, a furnace `chamber formed rearwardly of the burner and the convex side of the plate and adapted to direct the flame Y upwardly and around the plate, and means for supporting an article to be roasted in front of the coneaveopen side of the plate so that it will be subjected to radiant heat only.

3. In a range of the character described, a plurality of elongated horizontally disposed heating plates, said plates being substantially semi-circular in cross-section and having their concave sides open and un obstructed and said plates being disposed one above the other and interspaced with relation to each other, a furnace chamber disposed below each plate, each furnace chamber being extended upwardly and around the rear convex side of each plate, a burner in each furnace chamber and below each plate, means for admitting air to each furnace chamber, and a common discharge flue in communication with the upper end of each furnace chamber.

4. In a range of the character described, a plurality of elongated horizontally disposed heating plates, said plates being substanitally semi-circular in cross-section and having their concave sides open and unobstructed and said plates being disposed one above the other and interspaced with relation to each other, a furnace chamber dis'- posed below each plate, each furnace chamber being extended upwardly and around the rear convex side of each plate, a burner in each furnace chamber and below each plate, means for admitting air to each furnace chamber, and means permitting a free discharge of products of combustion from the upper end of each furnace chamber.

5. In a range of the character described,

an elongatedheatng plate, `a ,pair of bracket arms oneadjaeent each end thereof, anden-` tendng outwardly from the plate, -a pair of bearing` members one on each bracket alim and sldably mounted to move to and away from the heating plate, a roasting splt,

ing shafty being' `also journalled; n one of the bearings supporting the Splt shaft, a

`dljvng eonnectonformed `between the spit shaft anclfthe .teleseopng shaft, and means for rotating the -teleseopng shaft.

6. In a range of; the Character described,

an,elongatedheating plate, Ha pair of bracket arms one adjacent eaeh end thereof and extendngbutwardly from the plate, a pail' of beating members one on each bracket arm and `slclably mounted to move to and away `fromthe heatingplate, a roasting spit, a central shaft therein and `adapted to be supported by the bearings, a telescopng splned shaft journalled at right angles to the spit shaft and one end of the telescopng shaft being also journalled in one o the bearings supporting the spit shaft, a gear -secured on the telesoopng shaft, a gear adaptedtto nterl'nesh therewith and secured on the sptshaft, and means for rotating the `telescoplng shaft.

ARTHUR E. TROIEL. 

